Commit 81a7c4f5 authored by tepelmann's avatar tepelmann
Browse files

Initial checkin. 

Definitions taken from draft specifications(CAM TS 102 637-2 V1.0.4/DENM TS 102 637-3 V2.1.1).
Corrected ASN.1 for syntactically incorrect definitions.
Added module definitions.
parents

DENM.asn

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DENM-PDU-Descriptions {

 itu-t (0) identified-organization (4) etsi (0) itsDomain (5) wg1 (1) ts (102637) denm (3) version2 (2) 

}



DEFINITIONS AUTOMATIC TAGS ::= 



BEGIN



--STF405: doubled defined, renamed

--DecentralizedSituation ::= SEQUENCE {

DecentralizedEnvironmentalNotificationMessage ::= SEQUENCE {

	management	DecentralizedSituationManagement,	--  container with DEN management and version control

	situation	DecentralizedSituation,  			-- container with event description, incl. type, severity

	location	DecentralizedSituationLocation		-- container with event location, location referencing with more detailed location description and the relevance area

 }



DecentralizedSituationManagement::= SEQUENCE {

	-- protocol version number of the DENM

	protocolVersionDENM	INTEGER (0..255),

	-- unique message type identifier assigned to the DENM		

	messageID	MessageID,	-- 1 byte 

	-- time at which an originator  ITS  station generates the DENM

	generationtime	TimeStamp,		--  6 byte

	-- unique identifier about an event from one originator ITS station, combination of node ID and a sequence number

	actionID	ActionID,	-- 6 byte

	-- version of the DENM indicating updates from the same originator ITS station; value of 255 is used for the  cancellation message sent from the originator ITS station

	dataVersion	INTEGER(0..255),  	-- 1 byte

	-- time when the DENM is deleted from the DEN management and the inforamtion related to the event is set as invalid.. If it is not provided, it indicates that the expiry time is unkown by the originator ITS station	

	expiryTime	TimeStamp  	OPTIONAL, 	-- 6 byte

	frequency	INTEGER (0..255)	OPTIONAL, 	--1 byte

	-- probability of the detected event to  be true, varies  from 0 to 100, with maximum value as full reliability

	reliability	INTEGER(0..100), 	-- 7 bits

	-- negates the existence of an event at the event position by a third part ITS station that have received DENMs previously.		 

	isNegation	BOOLEAN    		-- 1 bit	

}



-- event description derived from [3]

DecentralizedSituation::= SEQUENCE {

	-- traffic status near the event position, defined based on [3], TPEG table tec001 

	trafficFlowEffect 	TrafficFlowEffect	OPTIONAL,	 -- 1 byte. 

	-- event direct cause and sub cause description as defined in tab6.1 and in [3]

	situation	SEQUENCE {

		cause 	CauseCode, 	-- 1 byte

		subCause	SubCauseCode	-- 1 byte

	},

	-- linked cause if information is available.

	linkedCause	Situation		OPTIONAL,	-- 2 Byte, 

	-- severity value of the event, defined in [3], TPEG table tec003			

	severity	Severity,	-- 1 byte

	-- characteristics of the event 

	eventCharact	SEQUENCE -- EventCharact	OPTIONAL 	 1 byte 

	{

		-- event mobility description, set to TRUE if the event is in mobility 

		eventmobility	BOOLEAN,

		-- whether the event is caused by the originator ITS station, set to TRUE if it is the case. FALSE if it is a location that may cause danger

		causeType	BOOLEAN,

		-- whether the event is physicalling relevant to the  receiving ITS station.. Set to TRUE if it is the case

		relevant	BOOLEAN,

		-- whether the event is time critical road safety event, set to TRUE if it is the case.

		timeCritacality	BOOLEAN,

		-- more characteristics may be added. 	

		...

	} OPTIONAL,

	-- tagged list to provide supplementary information  describing the event, may include DEs and EFs definied in [i.6] or [6]		

	taggedList	SET SIZE(0..32) OF TaggedList OPTIONAL -- optional taggedlist with TaggedValue  OPTIONAL

}



DecentralizedSituationLocation::= SEQUENCE {

	-- description of the event position

	eventPosition	CHOICE	{

		-- the geographical position of the reference position 

		refPosition	[0] RefPosition,

		-- other descriptions of the event position or the event area,  may be  as defined in [6]

		--STF405: type definition of EventArea missing!

		--eventArea	[1]	EventArea,	

		...

	},

	-- description of  the relevance area for the  DENM dissemination

	--STF405:  type definition of RelevanceArea missing!

	--relevanceArea	RelevanceArea,

	-- location referencing of the event position

	locationRef	CHOICE {

		-- consequence position of the trace location referencing mechanism

		trace	[0]	TraceLocData,

		-- more location referencing mechanism to be added

		...

	}

}



ProtocolVersionDENM ::=	INTEGER (0..255) 		-- 1 byte



MessageID ::=  	INTEGER (0..255) 		-- 1 byte



--STF405: renamed to TimeStamp as this is actually referenced, LongTimeStamp never

--LongTimeStamp ::=	INTEGER (0.. 281474976710655)		

TimeStamp ::=	INTEGER (0.. 281474976710655)		-- units of milliseconds, 6 byte



ActionID ::= SEQUENCE {

	stationID 	StationID,	-- a 4 byte value

	sequenceNo 	SequenceNo	-- a 2 byte value

}



--STF405: STRING not a valid ASN.1 type

--StationID ::=	STRING 		

StationID ::=	CHARACTER STRING 		

-- station ID of the DENM originator ITS station	

SequenceNo ::=	INTEGER (0..65535)		-- increased by 1 each time a new event is detected by the same ITS  station.



DataVersion ::= ENUMERATED {

	firstVersion	(0),

	secondVersion	(1),

	cancellation	(255),

	...

}



--STF405: removed as is expressed already in TimeStamp which is referenced only, furthermore OPTIONAL is syntactically incorrect

--LongTimeStamp ::=	INTEGER (0.. 281474976710655) 	OPTIONAL

-- 6byte, units of milliseconds.



Frenquency ::=	INTEGER (0.. 255)



Reliability ::=	INTEGER (0.. 100)	--7 bit



IsNegation ::=	BOOLEAN	--1 bit



--STF405: removed OPTIONAL, as it is syntactically incorrect

--TrafficFlowEffect ::= 	INTEGER(0..7)	OPTIONAL

TrafficFlowEffect ::= 	INTEGER(0..7)



Situation ::= SEQUENCE {

	cause 		CauseCode, 	-- 1 byte

	subCause	SubCauseCode	-- 1 byte

}



CauseCode ::= ENUMERATED  



-- 1 to 100 indicates causecode defined within [3]

-- 101 – 255 indicates causecode without being defined by [3]



{

	reserved		(0),

	dangerousDriving	(101),

	intersectionViolation	(102),

	vehicleProblem	(103),

	intersectionCollision	(104),

	hazardousLocation	(105),

	...

}



SubCauseCode ::= ENUMERATED

{

	unknown		(0),

	subCauseCode1	(1),

	subCauseCode2	(2),

	...

}													



--STF405: removed OPTIONAL, as it is syntactically incorrect

--LinkedCause ::= 	Situation		OPTIONAL

LinkedCause ::= 	Situation



--STF405: renamed to Severity

--LongTimeStamp ::= ENUMERATED...

Severity ::= ENUMERATED 		-- 1 byte

{

	informative		(1), 

	-- Text example: <Attention, there is a dangerous obstruction due to fog>

	obstacles		(2),	--danger level 1

	-- Text example: <Attention, there a danger due to fog>

	danger	(3),			--danger level 2: 

	-- Text example: <Attention, highest danger due to fog>

	highestDanger	(4)		--danger level 3: 

}



--STF405: removed OPTIONAL, as it is syntactically incorrect

EventCharact ::= SEQUENCE	-- 1 byte

{

	-- whether the detected event is in mobility (moving vehicle) or static

	mobility		BOOLEAN,

	-- whether the detected event is an ITS station, or is a geographical region

	causeType		BOOLEAN,

	-- whether the detected event is physically relevant to the received ITS stations (accident) or describing difficult driving conditions (fog on the road)

	relevant	BOOLEAN,

	-- whether a detected event is time critical (e.g., electronic braking light) or not (e.g. fog on the road)

	timeCriticality	BOOLEAN,

	...

}



--STF405: removed OPTIONAL, as it is syntactically incorrect

TaggedList ::= SEQUENCE

{

	...

}



RefPosition ::= SEQUENCE {

	situationLat	Latitude,  	-- 4 bytes

	situationLong	Longitude,  	-- 4 bytes

	situationAlt	Altitude,	-- 2 bytes

	-- accuracy of the reference position

	accuracy	PositionAccuracy,	-- 4 bytes	

	-- speed of the detected event if it is in mobility, i.e. vehicle station

	speed	Speed	OPTIONAL,		-- 2 bytes

	-- direction of the event if it is in mobility, i.e. vehicle station

	direction	Direction	OPTIONAL	-- 2 bytes

}



Latitude ::= SEQUENCE {

	isSouth 	BOOLEAN,              	-- true if on southern hemisphere (sign flag)

	degree  	INTEGER (0..900000000) 	-- multiples of 0.1 microdegree

} 



Longitude ::= SEQUENCE {

	isEast 	BOOLEAN,                 -- true if east of 0-meridian (sign flag)

  	degree 	 INTEGER (0..1800000000) -- multiples of 0.1 microdegree

}



Altitude ::= INTEGER (-10000..16767215) 	-- multiples of 0.1 m



PositionAccuracy ::= OCTET STRING (SIZE(4))	



--STF405: removed OPTIONAL, as it is syntactically incorrect

Direction ::= INTEGER{north(0), east(7200), south(14400), west(21600)} (0..28800)



--STF405: removed OPTIONAL, as it is syntactically incorrect

Speed ::= INTEGER (-32765..32765)	 -- multiples of 0.01 m/s 



LocationRef ::=	CHOICE {

	-- consequence position of the trace location referencing mechanism

	trace	[0]	TraceLocData,

	-- more location referencing mechanism to be added

	...

}



TraceLocData ::=	SEQUENCE {

	--3 bits, identifier of the trace.

	traceID	INTEGER(0 .. 7),	

	--5 bits, number of waypoint positions included in the trace.	

	waypoints	SEQUENCE (SIZE(0..31)) OF	Waypoint

}



Waypoint  ::=		SEQUENCE{

	-- 1st waypoint positions included in the trace.	

	ptLat 	Latitude,							--a 4 bytes value 

	ptLong 	Longitude,						--a 4 bytes value

	ptAlt 	Altitude,							--a 2 bytes value

	...

	--STF405: removed repetition

}



END
 
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